Dance dance help!

You could have it like this: Arrow arrow = new Arrow(); int random = Greenfoot.getRandomNumber(4); if(random == 0) arrow.setImage(firstimagename); else if(random == 1) arrow.setImage(secondimagename); else if(random == 2) arrow.setImage(thirdimagename); else if(random == 3) arrow.setImage(fourthimagename); And then do whatever code to set them in their random locations. Assuming you have a class named "Arrow" to act as the arrows in dance dance revolution.

One more thing.. I'm not sure how to make the arrows actually appear.. public class MyCat extends Cat { public void act() { displayArrows(); playMusic(); } public void displayArrows() { if (Greenfoot.isKeyDown("1")) { Arrow arrow = new Arrow(); int random = Greenfoot.getRandomNumber(4); if(random == 0) { arrow.setLocation(15, 45); arrow.setImage("downArrow.png"); arrow.move(5); } else if(random == 1) { arrow.setLocation(15, 45); arrow.setImage("leftArrow.png"); arrow.move(5); } else if(random == 2) { arrow.setLocation(15, 45); arrow.setImage("rightArrow.png"); arrow.move(5); } else if(random == 3) { arrow.setLocation(15, 45); arrow.setImage("upArrow.png"); arrow.move(5); } } } public void playMusic(){ if(Greenfoot.mouseClicked("Cat.MyCat")){ Greenfoot.playSound("hooray.wav"); } This should make the arrows appear on the screen when the number one in being pressed, right? What i really want is for when the number 1 is pressed, a song should start, and then the arrows appear as the song is playing..

Poprocks, every time you create anything, and you want it to show up on screen, you need to add it to the world. You do that like this: I hope that this helps!

There are several elements missing or wrong in the code you are showing here. (1) nowhere are the new Arrow objects being added to the world; (2) Greenfoot.mouseClicked does not take a String argument; (3) the way it is coded, an arrow will be created on each run cycle of the scenario that the '1' key is pressed; and (4) the music will not start on the '1' keypress;